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Calculate DG0 for the reaction below. The standard molar entropy change for the reaction at 298 K is -287.5 J/mol·K.
3NO2(g) + H2O ® 2HNO3(aq) + NO(g) + 136.8 kJ
If your absent minded lab partner spilled deionized water into your NaOH solution, diluting it, would the Ka value you determine for the solid weak acid be greater than
How much ice (in grams) would have to melt to lower the temperature of 355 mL of water from 24 C to 6 C (Assume the density of water is 1.0g/ml.
Describe how you will prepare the 1.00 x 10-3 M phosphate solution using the phosphate stock solution provided (1.00 x 10-1 M) to create a 200 mL of 1.00 x 10-3 M phosphate solution.
Determine the concentration of a solution of Mg(NO3)2 given the precipitate formed is 2.97 g and there are 50mL of Mg(NO3)2 and 50 mL of NaOH. Please show all work for each step clearly
calculate the molality of a solution prepared by dissolving 19.9 grams of KCl in 750.0 mL of water
The reaction H2O2 --> H2O + O2 could be catalyzed by either MnO2 or beef liver, which contains the enzyme catalase. In either case, the catalyst
A line in the Balmer series of hydrogen has a wavelength of 434 nm. From what state did the electron originate? Ni=? In what region of the electromagnetic spectrum is this line observed?
THE RATE CONSTANT FOR A CERTAIN REACTION IS K=1.40 * 10^-3 s^-1. if the initial reactant concentration was o.250 M, what will the concentration be after 5.00 minutes
The absorbance of the solution was 0.685 at 415nm and 0.513 at 455nm. What were the percentages of titanium and vanadium in the alloy?
After about five minutes of mixing, the final temperature of the solution inside the calorimeter reached 37 C. Calculate the heat capacity of the calorimeter (J/C - joules per degree).
Calculate the molarity and the molality of an NH3 solution made up of 36.5 g of NH3 in 70.0 g of water. The density of the solution is 0.982 g/mL.
Calculate the entropy change resulting from an increase in temperature from 285 K to 350 K of H2O2 given Cp = A + BT + CT^2 Where A=34.25, B = 55.18 and C = -35.15.
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